Denis Cousineau, Bradley Harding, Jesika A Walker, Guillaume Durand, Julien T-Groulx, Sébastien Lauzon, Marc-André Goulet
The Same-Different task presents two stimuli in close succession and participants must indicate whether they are completely identical or if there are any attributes that differ. While the task is simple, its results have proven difficult to explain. Notably, response times are characterized by a fast-same effect whereby Same responses are faster than Different responses even though identical stimuli should be exhaustively processed to be accurate. Herein, we examine a little more than a quarter million response times (N = 255,744) obtained from 327 participants who participated in one of 14 variants of the task involving minor changes in the stimuli or their durations...
April 10, 2023: Canadian Journal of Experimental Psychology